Illuminating device



I? I3K BENJAMIN.

ILLUMINATING DEVICE` APPLICATION FILED IAN. I8. 916. 1,352,737. Pmmdspz. i4, 19202,.

'SSHEETS-SHEET I,

R. B. BENJAMIN. ILLUMINAUNG DEVICE. Arme/mou mso mma. me.

1920. 3 SHEETS-SHEET 2.

Patented Sept. 14,

/IlialllI4 B. BENJAMIN',

:'LLUMINAHNG DEVICE.

APPLICATIUN FILED JAH. 18. i916,

5 Si a A Patete Sept. 111-, wg

3 SHEETSSHEET 3.

.a citizen of the United States,

narran STATES ar @or-rica.l

REUIBEN B.v BENJAMIN, OF CHICAGO, ILLINOIS, ASSIGN'OR '1Y0 BENJAMIN ELECTRIC MANUFAQTURING- COMPANY, F CHICAGO,

To all whom t may concern Be it known that I, InUEN B, BENJAMIN, residing at Chicago, in the `county of Cook i `which the following'is a full, clear, concise,

frdesirable to have .the source of light adjustable with respect to the'relector so that the rays -will he reflected in the proper direc tion. Thus in a parabolic reflector if the reflected rays are to be parallel it isessen tial that the source of light be located at the focus of the parabola, so that, unless 'there is Vsome capacity for adjustment of the light with respect to the reflector, it would often happen that when the Aparts were assembled the source of light would not he in focus and the rays would not be reflected in Ythe desired direction.

Among the objects ofnny invention is to provide an improved device lin which the light maybe quickly and easily adjusted,

which shall be simple in construction and efficient.' l

Further objects will appear from the detailed description to follow taken in connection with the appended claims. In the drawings, in which several embodiments of the invention are shoWn-'L Figure 1 is a vertical ,section through an illuminating device embodying my invens tion;

tachr and associated parts;

Fig. '3 `is a. section on the line '3-3 of Fio'. 2;

Fin'. 4 is a section on the line 4-4 of Fifr.

Fig. 5 is a section on' the line 5-5'0 Fig. 4; y

Fig. G isa section on the? line 6 6 of F ig. 1; igt 'T is a vertical section through a modi- Specification of Letters Patent.

and State ol" Illinois, have invented new and useful. .Improvements in Illuminating Devices, of-

Fig. 2 is a vertical section ofthe recepi-` ILLINOIS, A CORPORATION 0F ILLI- ILLUMINA'IING DEVICE. l'

Fig. 8 is an axial section of a modi-fied` form of receptacle; and

Fig 9 is a section on the line 9'-9 ol F1 8 ,eferring tothe drawings in detail and L ing, a receptacle l2 supported within the and an electric lamp 13 supported in .the receptaclev and lying within the reflector.`

lie'casing 10and reflector llvmay be similar to the fcorresponding parts of' devices no w in use, such as. headlights for electric railway cars in 'which it is desirable that the' reflected rays be as nearly parallel to each I' other as possible, be thrown lfor a long distance. 10-comp`rises`a base yportion 14 for supportin Ait in proper position on the carfa cylindrical shell ort1on 15 surrounding the re ceptcle andp reflector, a rearvv plate 16 to which the receptacle l2 is sehe casing cured, a lfralnel in whichthe front glass` 18 is secured, the frame being hinged at 19 to the casing to permit the frame to be swung up to allow access to the interior'of the casing. The reflector 11 is secured Withthe casing '10 by means of'screws'20 and` comprises a parabolicy portion 21 for reflecting the rays parallel to each other, and a spherical portion 22 substantially concentric with the sourceof light,and has an open`- ing 23 at its rear end to receive the front end of the receptacle l12. y

For the purpose of preventin certain' of the direct rays from the'. lamp Irom escapso that a strongrlight will' direction certain auxiliar` reflectors may be mounted on the hinged frame 17. Two such reflectors are shown, a'semi-eonical reflector 24 formed integrally with an elongated platel 25,. the ends of Which-,are secured at 26 to the frame 17 and a second semi-conical reflector 27 secured at 27"'L to the lplate 25 and comprising a forwardly flaring portion 28, and a rearwardly flaring portion" 29.' The rear edge ofthey Haring portion 29 is located so as? to intercept all ofthe upwardly projected direct rays which lwould otherwise escape in front of they fin'ward edge of the reflector 11. The rear edge of the reflector 24 is so located as to intercept pmotically ail of the direct rays which might otherwise he projected Lipwziriilly in, iront of the torward edge of the forwardly f 3l til-taloly and slidobly mounted in the rssing 30, sheil and center contacts 32 and 3,3 supported by the base 3l, a threaded adjust ing thumb ringBt for adjusting the lisse 3l and holding it in adjusted position7 and it spring for holding the hase 3i against the sdjustinglring 34.

The easing comprises a eylindrieiil portion 36 surrounding the hssel and .having l an opening 37 to accommodate the leading in wires. a threaded portion lil'with which the ring 34 engagesq and ve retaining plaie 39 on which the sjprinfr lseiits secured to the flange portion si() oi the casing hy roezins of eyelets 41. The shell cont-:ict 353 comprises a flange portion 42 seciired to the hase 3i. byy means of screws 43., nuts '-14 and :in eyelet Q5, ands threaded shell portion alii for engagement with the correspondingly threzided Contact-,oi the lomp hose.' rThe renter con` tact is secured to the heise :3l by niesns of on eyeiet riihe ends of the leading in Wires ins he connectenv roechanicolly-end elect 'ical y to the eyelets fl-li :md 46, as indi.- osted et fw., in any s itzihle manner :is hy soldering. The end oi' thespi'ing 35 engages a coller i8 secured or. the pinfil, the round1 ed end 5U of which engeges the insulating bz se 3l so that the hose een readily tilt shout `this 'rounded end portion es s. renter. The insulating base Si. romp-rises :1 gilii'le ienge 5l. which engages the cylindrical portion 36 of the easing and is recessed ss shown :it 52 (Fig. to engage the stamped in portions 5?, of the' casing 30 to prevent the insuhiting losse Si troni rotating Within the casing when the lmnp is srrewed into the reeeptselew 'nid is recessed' nt to receive the rearing pin i5), and is provided with dplier-ical portion suhstontiiilly concentric with the rounded end portion 50 of the pin sii), tor engagement with the inner ,edge of the threaded :1d-.instying 'ring 341. The casing 30 nir-ay he secured.

to the supporting plate l hy means of screws 56 extending tlirtmgh the eyelets il und through oiemngs in the supporting plate and mits 5i threaded or the srrews fr bushing 58 may he pronkt-ed for the rend;- ing. in wires 59 :it the point Where they enter the casi-ng l0. f' To' adjiist the .light the hinged ironie carrying the reflectors 24 and Q7 is thrown up out ofthe Way and the insulating hase 4the thumb ring. ,n

vthe bese -ll is ed" eted by taking hold of the Messner 3l. is adjusted slidehly and tiltshly until the rays are reflected in the desired direction. Tliesliding movement ot the hose 31 is effected by screwing the thumb ring 3ft inor ont,the spring holding the losse against The tiltinor morenientoi;

bulb of the 'lamp 13 and shifting it in thel desired direction, causing the brise 31 to tilt about the end of the pin 49, the spherical 7 portion of the brise engaging the inner edge ot the thumb ring 34; permitting this adjustment end 'rictionally holding the base in the position vto which it is adjusted.

In the modification shown Fig. 7 the 8C receptacle 12 end lamp i3 are substantially the seine as in the iorm shown in Figs. 1 to 6. ln themodiicetion oi' Fig. 7, however, the receptacle l2 is supported within the easing 60 in an inclined position by means 8,5

o'l a bracket 6l secured to the casing and to which the casing 30 of the receptacle is secured. il reflector 62 supported in the casing 60 and comprises s parabolic portion 63 for directing the reflected rays pzirnllelto 9o each otheigond a spherical portion 'snbstsntielly concentric with thesource of' light for reflecting the rays incident thereon lmck through the lump bullo onto the parabolic portion 6B oit' the reilector. A plate 65 may 95 he provided :is un additional support for the reflector. 'l f in order to utilize the upwardly .directed rays oi light which do not fell on the re VHector 62 afplurality of reflectors 66, 67 vand lof 68 are provided which may be secured tol the casing 60'in :my suitable manner. The rear edge of the reflector 6G is positioned 'so that it will intercept the rays from 'the lamp i3 which would otherwise pass upwardly in'. l0?.A

front oi' the reflector 6?. und the rezire'lge of the semi-cylindricnl reflector QT foes!I tioned so that 4it will intercept the rags which would otherwise poss in front of 'the edge oi the reilevtor (itl is positioned so thgrt it will intercept those' rays which'. Wouldotherwise poss out 1n 'iront oi tte reflector 62. The receptacle l2 is so lmntelitlmt the ing in .Wires are located.- This reti-eier;- 1e 326 vomprises a easing 69, o bushing 70 for snp- 'porting the easing 69 sind for screwing onto -thze end of ,a threaded conduit, im insulziting im 7l slidnhly und tiltolily mounted in *the casing 69, shell :ind center contacts 'i2 :ind 73 1'215 supported hy the hose 71,'o guide end bear? .ing pinto or follower T4 slideol mounted 1n the easing 69 and bearing on tie ,insulating 4bese il, o spring' 75 engaging the hearing plete 74 lf'or holding the'loitrriirmly against 1,30

the base A71, and a threaliilthumb ring 7 6 for slidably adjusting the base 71 and holding it in adjusted position. The casing 69 comprises a cylindrical portion T7 surround-- ing the insulating The flanged portion 79 is recessed at 82 toreceive a longitudinally extending rib 83 struck up from the casing 69. The spherical portions 80 and 81 are concentric with each other so that the insulating base 7l has, in ei'lect, a ball and socket connection with the ,casing 69. The bearing plate i4 has an annular flange portion 84 for engaging1 the casing 69 for properlypositioning t a spherical cup portion 85 for engagement with the spherical portion 80 of the insulat- -ing base, and an-annular flange portion 86 place the coiled spring 75.

for holding in The thumb ringa`76 comprises a spherical portion 87 for engagement with the spherical portion 81 of the insulating base, and a threadedl portion 88 for engagement with the threaded portion 7 8 of the casing. The leading inwires 89 pass through'the bushing 70 through the center opening into the hearing plate 75L and may be permanently secured in electrical connection with the center and shell contacts 72 and 73 substantially asin the form shown in Fig. 5. In this form the insulating base 71inay be slidably adjusted in thecasing 69 by screwing the thumb ring 76 in or out, the spring 75 holding the base in any position to which it may be adjusted, and the insulating base may be tiltably adjusted in the casing by taking hold fof the lamp which is screwed into the shell contact 7 2 and tilting itin the desired direction. Having thus described my invention whfgt I claim as new and desire ters Patent is v n l 1. A receptacle for electric lamps comprising an insulating base, a casing for said base, means` for adjustably supporting said base for universal movement in said casing,

'and means mounted on said' base andl movi able thereWithfo-r electrical connection with a lamp and for mechanically securing said lamp to said base to move therewith.

2. A receptacle .for electric lamps comprising an insulating base, a casing for said base, means for adjustably supporting said base for tilting and bodily movement in said casing, and means mounted on said base and movable therewith for 4electrical connection with a lamp and for mechanically securing said lamp to said base to move therewith.

3. A-receptacle for electric lamps 'com'- and a threaded portion 78 for enprising an insulating tion, a casing for said base,

to secure by Letholding said base with lamp contacts, sai spherical portion,

pising an insulating base, means for sllpporting said base for universal movement and for frictioii'ally holding it iii adiusted position, and means 'mounted on sail base and movable therewith for electrical connecwith.

el. A receptacle tor electric lamps coni- .prising an iiisulatingbase a casing for said base, spring means for adjustably support- .ing said base insaid casing and for frictionally holdingit inadjusted position, and means mounted on said base and movable therewith for electrical coii'iiectio'n with a lamp to said base to move therewith.

' -5. A receptacle for electric lampscoin-V piising an insulating base, contacts sup-l ported thereby for engagement with lamp contacts, said hase having a spherical poi"- tion,l a casing for said bas'e, and means for supporting said base in said casing for tilte. ing and bodily movement comprising ai'i adjustable ring havingl a portidn engaging said s lieiical portion.

6. receptacle forelectric lamps corn- 4 prising an insulating base, contacts sup ported thereby for engagement with lamp contacts, said base having a spherical portion, a casing for said' base, and means for vsupporting said base in said casing for tilting and bodily movement comprising an adjustable ring having a portion engaging said spherical portion, said ring having a threaded engagement with said casing.

l7.l Alreceptac'le for electric lamps combase, contacts sup-- so lamp and for mechanically securing said ported thereby for engagement with lamp 1 eontacts,said base having a spherical poi-- means for supporting said base in' said casing for tilting and bodily movement comprising an adjustable ring havinga portion engaging said spherical portion, and spring means for holding said sphericall portion against said ring.

8. A' receptacle for electric lamps coinprising aninsulatiiig base, a casing for said base, means for adjustably supporting said base in said casing, comprising an adjusting ring engaging said base, spring means for against said ring, and means mounted on lsaid base and movable therewith for electrical connection with a lamp and foi-.mechanically securing. said lamp to said base to move therewith.

@A receptacle for electric lamps comprisingaii insulating base, shell and center contacts supported thereb forengagement base lhaving a a casing for lsaid base, means for supporting said base in said casing for tilting and bodily movementv com prising an adjustable ringlhaving a portion iso i .rotation of said buse in said casing about the axis, ofsaid. shell Contact.

'10. A receptacle for electric lamps compi'ising;` an insulating base, a casing for said hase, :unl means for ndjustably supporting said base 1n said casing for movement in the direction in which the axis of saideliell Contact extends and also foi' tilting movenient, and meansmounted on Seial base und movable therewith for electrical connection with zi lump andy for mechanically' securing` said lump to Vseid hase to move tlieieivitl'i.J comprising shell and cante contacts for engagement 'with Corresponding lmnp con-- tacts.

ill.v A receptacle for electric lamps comprising en ineulzitin base, contacts supported 'thereby for .engzigei'nent with lamp contacts, a casing for said base, sind means for adjustnbly supportingeuid base in said casing 'for sliding and tilting movement :ind

ineens mounted on said bese and movable therewith for' electrical connection with e y.; intieme lamp end 'for mechanically securing saicl lamp to sind bese to Amove therewith.

l2. The combination with i'concave reflector, of :i receptacle for" electric lamps .comprising an insulatmgbuse, ineens for ndjuetnhly supporting seid bese for univer.- sal movement with respect to seid reflector, :incl means mounted on said heee and inovi able therewith for electrica-l connection with :i lamp and4 'for mechanically securing Seid lamp to seid base to move therewith.

13. The combination with a concave re ectoi', of a receptacle for electric lempe comprising an insulating heee, ii'iezins for' acljnstnhly Supporting seid bese 'for tilting nini lioflity movement with respect to seni relectoi, and means mounted on eli-itl hase sind movable therewith for electrical ecnnection with it l'anip and for meclniniczill)Y securing said lamp to seid heee to move therewith.

ln Witness whereof7 l have hereunto suh` scribed iny naine.

Rennen n. minieme. 

